Display screen or portion thereof with transitional graphical user interface



This application is related to U.S. patent application Ser. No.16/290,836, entitled “Controlling an Electronic Gaming Machine toProvide a Bonus Feature Opportunity,” to U.S. patent application Ser.No. 16/290,838, entitled “Digital Lobby and Multi-Game Metamorphics,” toU.S. patent application Ser. No. 16/290,833, entitled “IndividualMetamorphic Linked Jackpots” and to U.S. patent application Ser. No.29/682,178, entitled “Display Screen or Portion Thereof WithTransitional Graphical User Interface,” all of which are being filed onthe same day as the present application and all of which are herebyincorporated by reference and for all purposes.

FIG. 1 is a first image in a sequence of a display screen or portionthereof with transitional graphical user interface showing our newdesign;

FIG. 2 is the second image thereof;

FIG. 3 is the third image thereof; and,

FIG. 4 is the fourth image thereof.

The subject matter in this patent includes a process or period in whichan image changes into another image. This process or period forms nopart of the claimed design.

The dashed broken line in the perimeter of the drawings illustrates adisplay screen or portion thereof and forms no part of the claimeddesign. The dashed broken lines in the interior of the drawingsillustrate portions of the transitional graphical user interface andform no part of the claimed design.

CLAIM We claim the ornamental design for a display screen or portionthereof with transitional graphical user interface, as shown anddescribed.